Which of the following is NOT affected by drug use while driving?

Braking distance is primarily influenced by external factors such as road conditions, weather, and the vehicle’s speed and handling characteristics. While drug use can impair a driver’s ability to react promptly or make sound judgments about when to brake, the actual physical distance required to stop a vehicle remains largely constant based on these external factors. In contrast, judgment, vision, and hand-eye coordination are directly affected by drug use, leading to slowed reaction times, distorted perceptions, and impaired motor skills. This creates a more dangerous driving environment, as these elements are vital for the safe operation of a vehicle. Hence, while drug use can certainly impact how a driver operates their vehicle and their capacity to stop in time, the braking distance itself, as a static measure, does not change based on drug usage.